Are you giving her infant ibuprophen?

If the teeth have been broken off at gum level there is a chance that they will continue to grow and if you hold her back from release so you can "custom" feed her and watch the opposing teeth to make sure they do not compensate by overgrowing, she can be okay.

If the teeth are broken off in the jaw, a vet versed in dentistry will have to deal with it. Both upper and lower incisors are pretty specialty teeth with attachments inside to be strong enough to be squirrel teeth. You can't leave a broken off tooth in the jaw. It will decay and the resulting infection will not end without removing all of it.

So being able to get a really close look at this point is important. Needless to say, an x-ray would be a lot better.